公开(公告)号：US3592032A

公开(公告)日：1971-07-13

申请号：US3592032D

申请日：1969-06-30

Applicant: ASEA AB

Inventor： STROMBLAD INGEMAR

IPC: B21C23/00 ,  B21C31/00

CPC classification number: B21C23/007 ,  B21C31/00

Abstract: For the control of a press which includes a press stand, an operating cylinder carried by the stand and having an operating piston therein, a pressure chamber arranged in the stand and an extrusion die in the chamber, with a pressure-generating punch connected to the operating piston and inserted in the pressure chamber for compressing a pressure medium isostatically around the billet, a position indicator and a pressure indicator are provided which are connected to a calculating unit to sense when extrusion starts and to calculate, depending on the size of the billet, the allowable movement of the pressure-generating punch, which is interrupted just before the last of the billet is extruded.